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MySQL | CHARACTER_LENGTH method
schedule May 20, 2023
Last updated local_offer
Tags MySQL
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MySQL's CHARACTER_LENGTH(~) method returns the length of the input string measured in characters. It is synonymous with method CHAR_LENGTH.
Parameters
1. str | string
The string to return length for.
Return value
The length of the input string in characters.
Examples
Consider the following table about some students:
student_id | fname | lname | day_enrolled | age | username |
|---|---|---|---|---|---|
1 | Sky | Towner | 2015-12-03 | 17 | stowner1 |
2 | Ben | Davis | 2016-04-20 | 19 | bdavis2 |
3 | Travis | Apple | 2018-08-14 | 18 | tapple3 |
4 | Arthur | David | 2016-04-01 | 16 | adavid4 |
5 | Benjamin | Town | 2014-01-01 | 17 | btown5 |
The above sample table can be created using the code here.
Basic usage
To return length of student first names:
SELECT fname, CHARACTER_LENGTH(fname)FROM students;
+----------+-------------------------+| fname | CHARACTER_LENGTH(fname) |+----------+-------------------------+| Sky | 3 || Ben | 3 || Travis | 6 || Arthur | 6 || Benjamin | 8 |+----------+-------------------------+
To return length of 'HELLO':
SELECT CHARACTER_LENGTH('HELLO');
+---------------------------+| CHARACTER_LENGTH('HELLO') |+---------------------------+| 5 |+---------------------------+
Published by Arthur Yanagisawa
Edited by 0 others
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Official MySQL Documentation
https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_character-length
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